If a man ¹  makes a vow ²  to the Lord or takes an oath ³  of binding obligation on himself, ⁴  he must not break his word, but must do whatever he has promised. ⁵ 

Aaron the priest ascended Mount Hor at the command ¹  of the Lord, and he died there in the fortieth year after the Israelites had come out of the land of Egypt on the first day of the fifth month.

The towns you will give must be from the possession of the Israelites. From the larger tribes you must give more; and from the smaller tribes fewer. Each must contribute some of its own towns to the Levites in proportion to the inheritance allocated to each.